Specifications:It is suitable for the fastening field of various thickness plates and pipes (0.5MM-6MM).Using pneumatic or manual riveting tool to riveting at one time, which is convenient and firm.It replaces the traditional welding nuts and makes up for the shortcomings of thin metal plates, thin pipes that are easy to melt, and welding nuts that are not smooth.Item Name: Rivet Nuts KitQuantity: 150Pcs/SetMaterial: Carbon Steel Zinc PlatedThread: M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1.0, M8 x 1.25, M10 x 1.5Thread Pitch: M3 x 9, M4 x 11, M5 x 13, M6 x 15, M8 x 18, M10 x 21Features: Flat Head, Portable, Easy to UseBox Size: 20cm x 10cm x 3cm/7.87" x 3.94" x 1.18" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:40 x M3 Rivet Nuts35 x M4 Rivet Nuts25 x M5 Rivet Nuts25 x M6 Rivet Nuts15 x M8 Rivet Nuts10 x M10 Rivet Nuts